IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0472915
(2002-02-14)
|
| 우선권정보 |
DE-0015267 (2001-03-28) |
| 국제출원번호 |
PCT//EP02/01572
(2004-03-15)
|
| §371/§102 date |
20040315
(20040315)
|
| 국제공개번호 |
WO02//079646
(2002-10-10)
|
|
발명자
/ 주소 |
|
| 인용정보 |
피인용 횟수 :
35 인용 특허 :
28 |
초록
▼
In one aspect, the present invention relates to a system for monitoring wind turbines, wherein image and acoustic monitoring, in particular, is performed. In order to further improve, for example, the maintenance, safety and efficiency of a wind turbine, it is desirable to monitor additional paramet
In one aspect, the present invention relates to a system for monitoring wind turbines, wherein image and acoustic monitoring, in particular, is performed. In order to further improve, for example, the maintenance, safety and efficiency of a wind turbine, it is desirable to monitor additional parameters of the wind turbine. A wind turbine is provided, wherein acoustic and optical sensors are employed to monitor the operation of the wind turbine. In one embodiment, the optical sensor images a particular location in the nacelle housing when the acoustic sensor detects a sound emanating from that location in the nacelle housing. A method for monitoring a wind turbine is described wherein when a deviation between the operating acoustic spectrum and the reference acoustic spectrum exceeds the threshold, the component that generated the operating acoustic spectrum is imaged.
대표청구항
▼
1. A wind turbine comprising:a tower;a nacelle housing coupled to the tower;a rotor coupled to the nacelle housing;a generator coupled to the rotor;a first acoustic sensor to detect a sound produced in a first location of the wind turbine; anda first optical sensor, disposed within the nacelle housi
1. A wind turbine comprising:a tower;a nacelle housing coupled to the tower;a rotor coupled to the nacelle housing;a generator coupled to the rotor;a first acoustic sensor to detect a sound produced in a first location of the wind turbine; anda first optical sensor, disposed within the nacelle housing, to image the first location of the wind turbine after the first acoustic sensor detects the sound produced in the first location.2. The wind turbine of claim 1 further including a rail disposed in the nacelle housing, wherein the first optical sensor is coupled to the rail and wherein the first optical sensor is adapted to move along the rail within the nacelle housing.3. The wind turbine of claim 2 wherein the rail is formed in a closed ring within the nacelle housing.4. The wind turbine of claim 1 further includes a second optical sensor disposed on or in the wind turbine to image a portion of the wind turbine.5. The wind turbine of claim 4 wherein the first optical sensor is located within the nacelle housing to image at least a portion of the generator of the wind turbine.6. The wind turbine of claim 4 further including a gear box and wherein the second optical sensor images at least a portion of the gear box of the wind turbine.7. The wind turbine of claim 4 wherein the second optical sensor is an infrared sensor.8. The wind turbine of claim 1 wherein the first optical sensor is an infrared sensor.9. The wind turbine of claim 1 further including lighting means, disposed within the nacelle housing, to provide illumination within the nacelle housing while the first optical sensor images the first location of the wind turbine.10. The wind turbine of claim 1 wherein the first optical sensor is pivotably mounted within the nacelle housing.11. The wind turbine of claim 1 further including a rail disposed in the nacelle housing, wherein the first optical sensor is pivotably coupled to the rail.12. The wind turbine of claim 1 wherein the first optical sensor is responsive to control signals from a remote control station.13. A wind turbine comprising:a tower;a nacelle housing coupled to the tower;a rotor coupled to the nacelle housing;a first acoustic sensor, disposed within the nacelle housing, to detect a sound emanating from a location within the nacelle housing of the wind turbine; anda first optical sensor, disposed within the nacelle housing, to image the location within the nacelle housing of the wind turbine in response to the first acoustic sensor detecting the sound.14. The wind turbine of claim 13 further including a rail disposed within the nacelle housing, wherein the first optical sensor is pivotably coupled to the rail.15. The wind turbine of claim 14 wherein the rail is formed in a closed ring within the nacelle housing.16. The wind turbine of claim 13 wherein the first optical sensor is an infrared sensor.17. The wind turbine of claim 13 further includes a second optical sensor, disposed within the nacelle housing, to image a portion of the wind turbine.18. The wind turbine of claim 17 further including:a generator;a gearbox; andwherein the first optical sensor is positioned to image at least a portion of the generator of the wind turbine and the second optical sensor is positioned to image at least a portion of the gearbox of the wind turbine.19. The wind turbine of claim 17 wherein the first optical sensor or the second optical sensor is an infrared sensor.20. The wind turbine of claim 13 further including lighting means, disposed within the within the nacelle housing, to provide illumination within the nacelle housing while the first optical sensor images the location within the nacelle housing of the wind turbine.21. The wind turbine of claim 13 wherein the first optical sensor is pivotably mounted within the nacelle housing.22. The wind turbine of claim 13 wherein the first acoustic sensor is a unidirectional microphone.23. The wind turbine of claim 13 wherein the first optical sensor is responsive to control signals from a remote control station.24. The wind turbine of claim 13 wherein the nacelle housing includes a material that allows natural light to enter the nacelle housing.25. A method of monitoring a wind turbine having a plurality of components including: (i) a tower, (ii) a nacelle housing coupled to the tower, (iii) a rotor, coupled to the nacelle housing, (4) a first acoustic sensor, and (5) a first optical sensor, the method comprising:detecting an operating acoustic spectrum generated by at least one of the components during operation of the wind turbine;comparing the operating acoustic spectrum to a reference acoustic spectrum;detecting a deviation between the operating acoustic spectrum and the reference acoustic spectrum;determining whether the deviation between the operating acoustic spectrum and the reference acoustic spectrum exceeds a threshold; andimaging at least a portion of the component that generated the operating acoustic spectrum when the deviation between the operating acoustic spectrum and the reference acoustic spectrum exceeds the threshold.26. The method of claim 25 wherein the reference acoustic spectrum is an acoustic spectrum produced by the component during normal operation.27. The method of claim 25 wherein the reference acoustic spectrum is an acoustic spectrum that is expected to be generated by the component during normal operation.28. The method of claim 9 wherein when the deviation between the operating acoustic spectrum and the reference acoustic spectrum exceeds the threshold, the operation of the wind power installation is automatically or manually terminated.29. The method of claim 25 further including:repetitively detecting the operating acoustic spectrum generated by the component of the wind power installation;repetitively comparing the detected operating acoustic spectrums to a reference acoustic spectrum; anddetermining whether the comparison between the detected operating acoustic spectrums to a reference acoustic spectrum exceeds a threshold.30. The method of claim 25 further including:continuously detecting the operating acoustic spectrum generated by the component of the wind power installation;comparing the detected operating acoustic spectrums to a reference acoustic spectrum; anddetermining whether the comparison between the detected operating acoustic spectrums to a reference acoustic spectrum exceeds a threshold.
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